ventilation of stand
 

How much room should i have between the wall and the back of my stand to have proper ventilation of humidity from the sump?

I have about 3-4 inches, been like this for years without issue

I leave enough room to pull out/push in a wall plug.

3" on my stand but that for the pluming.

5" for easy access to do some cleaning for my overflow box

so by the sounds of it, im being alittle anal. thanks for the input! journal to come soon.